selections in image use anti-aliasing mode when resizing - how to stop that

Forum|Forum|5 years ago
August 10, 2020
2 replies
1987 views

using properties panel to change the dimensions of either a pixel layer or selection causes the selection to use anti-aliasing mode. Imagine a filled rectangle- dimensions changed to make it smaller, the rectangle is now filled as though I used the bucket tool with anti-alising selected (transparent pixels along the edges).

How to do I turn this off ? or change the settings to prevent this?

seems to be going back a few versions. been on adobe support 2x and both times - support person tried to update the software, which lost my workspace, keyboard shortcuts and eventually asked to "get back to me".

How to

Bojan Živković11378569

Community Expert

You have option Image Interpolation in Preferences > General. If that does not help to change to say, Nearest Neighbors then pay attention to have pixels aligned to pixel grid because anti-aliasing occurs when pixels are not aligned to pixel grid or when curve is crossing pixel. Otherwise you can add extra step with layer mask which must be modified further for hard edges when working with curved shapes. Modified layer mask is one of the solutions which come to my mind.

C

chet_60Author

Known Participant

Thank you.

FYI: image interpolation is set to Nearest Neighbor as a default.

so it is not that.

seems as though there is an extra step no matter what- in the case that I am not resizing the entire image.

Interesting suggestion to align pixels to grid- because (if it is the SNAP function). We turn that OFF in order to place pixels where we want them. When SNAP is on...pixels jump left or right- usually away from our desired location 1/2 the time.

I will try for this process.

Thank you

JJMack

Community Expert

Use vector layer and vector smart object files. Eliminate interpolation when transforming size use vector math instead.

JJMack

chet60

Participating Frequently

Thank you...

extra steps required?

also what is vector math? not pixels?

JJMack

Community Expert

Pixels will be rendered for the resulting vector graphics transformed size. The Path is a mathematical plot sizing is a math operation not an interpolation of a raster image pixels. There are several interpretation you can use to resample are raster image to a different number of pixels Vector Shape layer are fill layers masked by a vector layer mask.

JJMack

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